<template>
  <el-menu
      default-active="2"
      class="el-menu-vertical-demo"
      @open="handleOpen"
      @close="handleClose"
      :collapse="isCollapse"
      background-color="#545c64"
      text-color="#fff"
      active-text-color="#ffd04b"
  >
    <h3>{{isCollapse?'后台':'通用后台管理器'}}</h3>
    <el-menu-item v-for="item in noChildren" :key="item.name" :index="item.name" v-on:click="clickMenu(item)"> <!--v-on:click等效于@click-->
      <i :class="`el-icon-${item.icon}`"></i>
      <span slot="title">{{item.label}}</span>
    </el-menu-item>
    <el-submenu v-for="item in hasChildren" :key="item.label" :index="item.label">
      <template slot="title">
        <i :class="`el-icon-${item.icon}`"></i>
        <span>{{item.label}}</span>
      </template>
      <el-menu-item-group v-for="subItem in item.children" :key="subItem.path">
        <el-menu-item :index="subItem.path" @click="clickMenu(subItem)">
          {{ subItem.label }}
        </el-menu-item>
      </el-menu-item-group>
    </el-submenu>
  </el-menu>
</template>

<script>
export default {

  data(){
    return {
      // isCollapse: false,
      menuData:[
        {
          path: '/',
          name: 'home',
          label: '首页',
          icon: 's-home',
          url: 'Home/Home'
        },
        {
          path: '/mall',
          name: 'mall',
          label: '商品管理',
          icon: 'video-play',
          url: 'MallManage/MallManage'
        },
        {
          path: '/user',
          name: 'user',
          label: '用户管理',
          icon: 'user',
          url: 'UserManage/UserManage'
        },
        {
          label: '其他',
          icon: 'location',
          children: [
            {
              path: '/page1',
              name: 'page1',
              label: '页面1',
              icon: 'setting',
              url: 'Other/PageOne'
            },
            {
              path: '/page2',
              name: 'page2',
              label: '页面2',
              icon: 'setting',
              url: 'Other/PageTwo'
            }
          ]
        }
      ]
    };
  },
  name: "CommonAside",
  methods:{
    handleOpen(key, keyPath) {
      console.log(key, keyPath);
    },
    handleClose(key, keyPath) {
      console.log(key, keyPath);
    },
    clickMenu(item){
      // console.log(item.path)
    //  跳转
      console.log(this.$route.path)
      /*判断跳转路径是不是当前路径*/
      if (this.$route.path !==item.path && !(this.$route.path ==='/home' && (item.path ==='/'))){
        this.$router.push(item.path)
      }
      // this.$router.push(item.path)
    }
  },
  computed:{
    //  没有子菜单
    noChildren() {
      return this.menuData.filter(item => !item.children)
    },
    //  有子菜单
    hasChildren() {
      return this.menuData.filter(item => item.children)
    },
    isCollapse(){
      console.log("state",this.$store.state.tab.isCollapse)
      return this.$store.state.tab.isCollapse
    }
  }
}
</script>

<!--使用less-->
<style lang="less" scoped>
.el-menu{
  height: 100vh;
  border-right: 0px;
  h3 {
    color: white;
    font-size: 16px;
    font-weight: 400;
    text-align: center;
    line-height: 48px;
  }
}
</style>